This is the Futaba 4YF 4-Channel FM Radio System
with the R168DF Receiver and four S3004 Ball Bearing Servos.

FEATURES

All-channel servo reversing for more installation options
Transmitter and receiver NiCds made from genuine Sanyo cells can be
recharged simultaneously with the included 50mA overnight charger
Power and servo reversing switches are located down and out of the
way for convenience and to avoid accidental changes
The battery meter features one Green and one Red LED for easy-to-read
GO/NO GO status.
Ball bearing servos for smoother operation than standard servos
Spring loaded trainer toggle switch for instant "OFF"
Gimbals have knurled tops for a better "feel" on the sticks and to
prevent finger slippage.
One year limited warranty